You can remove extensions installed by the root if you install the extension via Gnome Add/Remove as root you cant remove it from firefox as a normal user.
Thanks for your report! ** Changed in: ubuntu Status: New => Invalid -- Extensions for Firefox installed via the Install/Remove Extensions app are not removable. https://bugs.launchpad.net/bugs/156090 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs